TRP-C68  8-Channel Analog input Isolated Converter.(Version:2.1)


TRP-C68 Ver:2.1, an 8-channel Analog to Digital Converter (ADC), takes an analog input signal and converts the input into a digital output signal. It accepts analog input-a voltage or a current-and supports the sample rate in “Normal” or “Fast” mode. All channels feature screw terminals for convenient connection, All analog inputs are provided with isolation and surge protection to protect the module against high voltage spikes, as well as ground potential differences. TRP-C68 support both ASCII and Modbus protocol, with a full set of command, dual watch-dog, and auto reset function the module can be remote controlled by PC in ASCII or Modbus RTU protocol. TRP-C68 version 2.1 has Built-in resistances to facilitate the user to select current or voltage mode.


  • Support ASCII and Modbus RTU protocol.
  • Photo Isolation 3750V between digital and analog.
  •  All channels can input analog signal by voltage or current.
  •  Baud rate from 1.2Kbps to 115.2Kbps.
  •  Surge protection on RS-485 interface.
  •  LED display to indicate power and communication.
  •  Dual Watchdog for hardware reset circuit and host operating status.
  •  External switch for hardware and module’s configuration.
  •  Support screw terminal, or external DC power supply.
  •  Built-in 125 ohm resistors for each channel can be selected through internal Jumpers.
  •  Wide input range DC power supply.


  • Resolution :16 bit
  • Sample rate: 24 BIT Normal mode: 10 sample / sec.

                               16 BIT Fast Mode: 60 sample / sec.

  • Bandwidth: Normal Mode: 15.72Hz.

                   Fast Mode:/78.72Hz.

                   Zero drift: 0.03uV/C .

                   Span drift:25 ppm/C .

  • Accuracy: Normal 0.1 or better.

                      Fast: 0.5 or better.

  • Analog Input range: Voltage:±10V,±5V,±2.5V,±1.25V,±650mV..

                                 Current: +/-20mA. CMRR:92 db min/50/60Hz

  • Analog input over voltage protection:+/- 48V .
  • RS-485 connector: Industrial plug-in screw terminal.
  • Communication Interface: RS485,2 wires.
  • RS485 Transmission distance : 4000ft . ( 1200M ).
  • LED indicator: Power and Communication.
  • Speed: From 1.2K to 115.2Kbps.
  • Power consumption:1.2 Watt.
  • Power requirement: DC input from +10 to 30 V.
  • Operating Temperature: -10 to 60℃ .
  • Storage Temperature: -20 to 60℃.
  • Humidity: 10-90% Non-condensing.
  • Dimension: 151mm X 75mm X 26mm .
  • Weight: 398g .


PWR-AD12VAuto (Option)

Switching Adaptor

Input:100~240VAC 50/60Hz 260mA

Output: DC 12V/1A

Certificate: CE, FCC, UL, PSE

US Specification  

We also provide the EU / AUS / British specifications(MOQ:50PCS/2 Weeks)……more

DIN-RAIL-R (Option)

DIN rail mounting adapter